Question

(1+cot2 A) sin2 A=1

Answer 1

Solve for A, correct?

Answer 2

is that 2 a power? @akshay24

Answer 3

\(\cot A = \dfrac{\cos A}{\sin A} \)

\( (1 + \cot^2 A)\sin^2 A = 1 \)

\( (1 + \dfrac{\cos^2 A}{\sin^2 A} )\sin^2 A = 1 \)

\( \sin^2 A + \dfrac{\cos^2 A}{\sin^2 A} \sin^2 A = 1 \)

\(\sin^2 A + \cos^2 A = 1 \)

\(1 = 1\)

The identity is true.